Locomotive driving mechanism



Oct. 18, L. L. NE'LLBE LOCOMOTIVE DRIVING MECHANISM Filed Jan. 29. 19262 Sheets-Sheet 1 Oct. 18,1927.

L. L. NEEBE I IYTY Mn g l- 1 .J I kg L k z m N o h .J m 5 u, l' 313i NFiled Jan. 29. 1926 2 Sheets-Sheet 2 Patented Oct. 18, 1927.

UNITED STATES PATENT OFFICE.

LAWRENCE L. NEEBE, OF WOODBURY, NEW (JERSEY, ASSIGN'OR TC THE BALDWINLGtCOMOTIVE WORKS, 0F PHILADELPHIA, PENNSYLVANIA, A CORPORATION OFPENNSYLVANIA.

LOCOMOTIVE DRIVING MECHANISM.

Application filed January Mv invention relates to certain improvementsin locomotives of the rack and pinion type. in which the rack mechanismis located between the main driving-wheels.

The invention is particularly adapted for use on narrow-gaugelocomotives, where the space is limited.

The object of the invention is to so arrange the main rod and the siderods of the rack engine that the main rod will be directly above theside rods, thus allowing the rack mechanism to occupy a narrow space.

In the accompanying drawings:

Fig. 1 is a side view of a locomotive, showing the. main driving-wheelsand frame, as well as a portion of the boiler, in dotted lines, and therack mechanism in full lines;

Fig. 2 is a plan view illustrating one-half of the mechanisn'i;

Fig. 3 is a detached view of the main rod; and

Fig. rods.

1 is the main frame of a locomotive. 2 is the main axles having thedrivingwheels 3 and the usual cranks (not shown). The boiler-t issupported on the main frame 1 in the usual manner. The frame of the rackmechanism is carried by the main axles 2 2. as shown.

Mounted in boxes in the frame 10 are axles on which are secured thepinions (3 which engage the racks on the road-bed of the track. Thecranks 7 are secured to or form part of the axles.

Mounted on the wrist-pins 9-9 of the cranks is a side rod 8. Thewrist-pin 9 is adapted to an adjustable box 11. which is made in twoparts as shown, and back of 'one of the parts is a wedge 12, beingcapable of adjustment by a bolt 12 Extending upwardly from the side rod8 is a bearing 13 having: a bushing 14 in the present instance. andextending through this hearing is a pin 15, which connects the main rod16 with the side rod. This main rod is forked to extend on each side ofthe bearing 13, as shown in Fig. 2, and is directly above the side rod,so that space is economized, and the two rods are so formed that theywill not interfere.

The main rod is coupled by a. pin 17 to a.

-l is a detached view of one of the side 29, 1926. Serial No. 84,681.

cross-head 18, which is adapted to slide on the guide 19. Attached tothe cross-head is a piston-rod 20 leading to the piston in the cylinderof the rack mechanism of the locomotive.

The bearing 21 of the main rod is made in the form of a split-box, andis adjusted by means of a wedge 22 or other device. The bearing 23 atthe opposite end of the rod 16 has a cylindrical bushing, through whichextends the pin 15. It will be understood that the mechanism isduplicated on the other half of the locomotive.

The details of the rods 8 and 16 may be modified without departing fromthe scope of the invention. which is to so design the rods that the mainrods will be located di rectly above the side rods.

By this arrangement, the only rack mechanism between the frames of therack mechanism are the pinions which are mounted 011 the axles 5. Themain rod and side rods are located between the rack frame 10 and themain driving-wheels 3 of the locomotive.

I claim:

1. The combination in a locomotive of the rack type, of rack mechanismincluding crank-axles and pinions mounted on said axles; side rods; andmain rods, said side rods being coupled to the cranks of the axles, andthe main rods being pivoted to the side rods and located directly abovethe side rods, the end of each main rod being connected to a cross-headof the locomotive.

2. The combination in a locomotive of the rack type, of a rack frame;two axles mounted on the frame; pinions mounted on the axles between theframe; cranks on the axles, outside of the frame; a side rod connectingthe two parts: an upwardly extending bearing on the side rod; a main rodlocated directly above the side rod and pivotally connected to saidbearing of the side rod; and a cross-head to which the main rod ispivotally connected.

3. The combination of the main frame of a locomotive; main axles;driving-wheels and cranks thereon; a rack frame mounted on the mainaxles between the drivingwheels; two axles on the rack frame; cranks onsaid axles; pinions on the axles; a side lit) rod on each side of therack frame and connecting the cranks of the rack axles; and a main rodmounted above each side rod and connected to the side rod at one end.

4. The combination in a locomotive of the rack type, of a rack frame;tWo axles mounted on the frame; pinions on the axles; cranks on theaxles, outside of the frame; 9.

side rod having a bearing at each end, one of said bearings beingadjustable, said rod having an upwardly extending bearing near one end;and a main rod located above the side rod and connected to the upwardlyextending bearing of said side rod.

LAWRENCE L. NEEBE.

